Will they be back this spring?
It was very noticeable last year - the absence of Hoverflies. Whereas I normally get a fair number visit flowers last spring and summer I had few.
Hoverfly Sryphini taeniata on Honeysuckle leaf
I have normally noticed quite a lot of them on the Honeysuckle and Budhlea flowers.
Balteatus commonly called Marmalade Hoverfly on Honeysuckle flower.
Chrysotoxum festivum on Honeysuckle leaf.
Last year I saw only a couple of 'Marmalades' who didn't stop. Butterflies and bumblebees were few and far between. I did get some pix of Harlequin Ladybird larva in the changeover to flies but that was about it.
Harlequin ladybird Harmonia axyridis on a tree mallow leaf.